Cotton picker doffer



Sept. 7, 1954 J. MORKOSKI ET AL COTTON PICKER DOFFER 2 SheetsSheet 1Filed March 2, 1955 //7 1/617 20/5 James Markos/ff 06/05 A. l/l a/A'erVIII/[(1,114 "awa:

p 7, 1954 J. MORKOSKI ET AL 2,688,225

COTTON PICKER DOFFER Filed March 2, 1953 2 Sheets-Sheet 2 F/G3 J3 PMQ.

Patented Sept. 7, 1954 UNITED. STATES;- earemtr oirrrca.

COTTON" PICKER' DOFFERv i James MorkoskilandrDelosA'.",.Walker,"Memphis,a Tenm; 1 assignors; to International Harvester:Company, acorporat-ion of New Jersey Application'-March2,"1953, Slial"No." 339,864

GuCIaims. (Cl. 56-44) 1 r: 2&1.

This:inventionrelatestodoffing meehanismrfor doffer assembly with partsbroken aaway and: cotton pickers and more specifically: to novel:showndnsection;

doflinglelements of thetynemounted on a rotat- Figure 2 is a transversesectionali view takeniz ing carrier for removing cotton from: pickinge1e+- substantially on the:line-2-2,Figure L andrShOW Y ments such asrotating spindlesn ing the doffer-mounted in: 'association:.-With "theeThe most practical cottonpicker inwuse-=fa+- carrier shaft'g tures= apicking unit which comprises a f drum Figure 3is -a top vplanview -ofoneof: the secure Q rotatable about a vertical axis-and providediwithw ingmembers and;

a plurality of picking spindlesaindividually re- Figure 4 is 'a bott'om'-plan-view of OI'lB-Of-Ethfifi tatable' on substantially horizontal axesand dis-t I lO doffer lugcomponents;

posed-in vertically spaced series. A'sv the machinei: Aigeneralunde'rstandingapr-the:operatiomof zw is movedalonga rowzofcottonplants'; the spine. cotton picker of 'the doffed spindle type-maybei dleslmove into-the plants: and operate to'piclcl'. had from' U. SEPatent to I J ohnston: 21405631..vthe: m ;v by Wrapping, 1 t pindles lie sc. The idOi'flllg vmechanismherein illustrated oom are moveduinxanorbit out .of the-plants. t w rdrz 15 pris'es a verticalrshaft zwhichmaybe rotatedby doffin hani hi h e ve ,;the ccotton. any :suitablesourceofpower and i'which canri'esi from the spindles for subsequent deliveryof thea plura ty f 'ver a sp d; u ar rs cottonxto a suitablereceptaole;One-;partiou1ar r n s y- W Shown)? doffing mechanism heretofore in useisthat type ny designated; 1 3; p dp r n cc r ncewhichcomprisesavertical shaft 'oni which is se- ZO'With; the verticalspac ngf 'theiassociated sp cured a plurality of domng'mernbers; one for each 1s:

series .of spindles Thesesdofiing members are Ea'chidoffeflcompliis'esbl cimulavplate Carrier-1" interleavedcwithi the spindlesandrotate in-such member vrlhub a e tral-bore or directions that :theyengage the cottonon -thep i g w receive =the -doffer shaft The spindlesby dofiing elements, which principallywzapaplate-like mountingmember:is'- constrainedw for are constitutedof bb 111gs rotation withethe shaft by any suitable means The selection: of; rubberin the makingofthese Suchl; S- y iclamping" pacers 6 "made-"i ll'="adoffer lugs hadbeen carefully made on the basis e al a gement as shown in a copending lofiperformanceland with the knowledge that such pl cation? filed inathename of-Ll Pi M -Q w l lug wouldmaveio bereplacmlj va gqmialfNor211,.463'for LCOttOl'l Picker Doffer :Assemconstructions featurearrangements wherein the February 1951i 1 now ULSL' Patent-lblockszarezformedlintegraliwith a disk which is 26543202? The S 'c is,of coursefi mounted (011 the carrier :01. provide! ll "bm z. theaxis-rofxthezshaftrz andethegeneral plane segments which/are removablyfixed to-tl-iadisk. Off-m9 carrier iS-hOIiZOIICaL A principal object ofthe invention is to pro The r r p a e i serves as a mo vide a novel doffer assembly wherein. the doffer the clampmg- 5 mlandthe doffi" elugrportions are easily secured andremoved from P will bel-appleciated Qa Considerathe 'carrier disk while the disk'is in'assembled-re-Figures-ligand 4 that the members 91 lationship with the carrier haftand 8 arerespectively;substantially identical and-* A more specificobject of the inventionis r0 affordabilaterallysymmetridal assembly;

devise an economical highly emcie-nt and novel, Eachsecurin'g member 1is semicircular in plansecurement of the dofier elements to the-carrierand "@mpriseS'an' arcuatwwebpolfibnfl With 'a' disksuch as will-holdthese doffer elements'posififequallyspaced"radially elongated pertiv'elysecured to-the carrier plate and wherein Whmh!gxtndxfmnfladjacentithethe-parts areeasily assembled andidismantleds "ggfifg ififiggggh ggifigfig i fgp gi and Wherem w number of difierent parts is 9 is formedz'withr zanziinu ardln or i ally of i it I l ii fzi go i g i i d otherimportant objects and seating flange-portions which Seats-as vat-M2? k Iagainstthe'bottomai desirable features inherent and encompassed by; s deof the assomated earner:

i I plate 4." It will be'seen thatxthe contour of the the invention W111become apparent as alcomplete' member -1 is concentric withathe it e. 1t

disclosure of a preferred form ofathesinventionl 4 and thattheoutervzmarginrof the web 9-is-de 1s made in the following detaileddescription and". finediby anxiaxiallywupwardly extending cir'cum*-*---accompanying sheets oft-drawings in-.which: ferentialafiange l3 which isadapted to seat- 1011 Figure 1 is a bottom plan 1viewL- ofc-the. snoveltitsszinternal side as at M against the outer-p riphery of the adjacentperipheral portion of the plate 4. The upper margin of the flange I3 isformed integral with an inwardly projecting circumferential radiallyarranged inturned flange [5 which is adapted to seat against the topside of the plate 4 as at [6.

The dolfer elements 8 are each substantially identical and eachcomprises a generally flat semicircular base portion I! which isrelatively thin in an axial direction as best seen in Figure 2 and isarcuately approximately coextensive with the related member "I or la.The base portion I1 i received between the web 9 and the bottom side ofthe plate 4 and is stressed under compression therebetween and in flatface engagement therewith as at [8 and 19, respectively. The tendencyfor the base portion between the plate 4 and the web 9 to expand effectsa tight engagement between the interior of the top flange l5 and the topside of the plate 4 along the substantially flat surface [6. The baseportion I! is formed on its bottom ide with a plurality of dependingdoffer lugs 20 of somewhat trapezoidal configuration in cross-sectionand elongated radially of the axis of curvature of the base portion I!on the same radius as the dofier carrier plate 4. The lugs 28 are spacedfor registry with the respective openings or slots It in the web 9 andit will be seen from a consideration of Figure 1 that the outercircumference 22 of the base portion l1 substantially coincides with theinner face 23 of the axial flange 13 of the associated clamping member 1or la, said inner face defining the outer edge of each slot I each ofwhich further has generally radial side edges Illa, 101). The innermarginal edge or circumference 23 of the base portion [1 is ofsubstantially greater radius than that of the inner edges or margins 24of the opening I!) and the width of each lug 29 is substantially lessthan the width of the opening H] to which it extends to provide an areaof flexing for each lug when operating in wiping over a spindle and thusprevent concentrating high loads in the immediate zones of juncture ofthe lugs with the base portion [1.

Each U -shaped member 7, la is provided at the outer end portions of itslegs with eyes 25 and the eyes 25 of the member la are offset axiallyand adapted to superpose with respect to the eyes 25 of the oppositemember I and the openings in the eyes are adapted to register withrespective openings 2B in the plate 4 for reception of a securing nutand bolt assembly 2'! which is accommodated through a cutout 28 in theadjacent end of the base portion l1.

Assuming that a worn dofier is to be replaced in the field and that thedoifer disk 4 is mounted on the shaft 2, the mechanic would merelyremove the nut and bolt assemblies 21 and then separate the clampingelements 1, la from the plate 4 by merely moving the clamping elementsradially away from the plate and would also carry the dolfer elementswhich then would be removed from the respective clamps. New doffingelements 8 which, of course, are made of rubber material are theninserted within the respective clamps 1, la with the lugs 20 projectedthrough the respective openings I 0 and the outer margins 22 of themounting base portions snugly seated against the inner faces 23 of theflanges l3 within the pockets 29 defined between the flanges 9 and I andthe flange l4. Then the inner side IQ of each member 8 is placed on thebottom side of the plate 4 and the members 1, 1a together with thedofiing elements 8 therein are 4 slid radially together in telescopedposition and the eyes 25 of the respective elements 1, la are alignedand the bolts 21 inserted through the appropriate openings andtightened.

It will be now readily appreciated that the arrangement herein disclosedprovides a facile assembly which affords a positive securement of thedofling components with the plate carrier 4. Furthermore only threedifferent parts are involved, that is the component 8 and the clamps I,la and the arrangement of these parts obtains a self-guiding andaligning feature.

For ease in assembly, the eyes 25 at one of the adjacent ends of themember I, la may be secured to the plate 4 and then the sub-assemblies1, 8 and la, 8 may be swung into telescoped coupled concentricrelationship onto the plate 4 and then the other bolt 21 applied.

What is claimed is:

1. A cotton picker dofier, comprising: a generally circular carrierplate, a pair of complemental, semicircular clamping members concentricwith said plate and in radially telescoped relationship therewith, eachmember including a perforated web portion disposed in axially spacedrelationship to one side of the plate, an axially directed peripheralflange on the web portion overlapping the periphery of the carrierplate, a radial inturned flange integral with said axially directedflange disposed against the opposite side of the carrier plate; and apair of complemental doffing elements associated with respective membersand each having a base portion interposed between said web portion ofthe related member and said one side of the carrier plate, and dofiinglugs connected with said base portion and extending axially thereofthrough the perforations in said web portion of the associated member.

2. A cotton picker doffer according to claim 1 and said clamping membersdisposed end to end and having end portions arranged in overlappingrelationship to each other, and common securing means extending throughthe overlapped end portions and said plate and securing the same inassembly.

3. A cotton picker doffer according to claim 1 and said base portionbeing semicircular, and said perforations being larger than the lugsprojecting therethrough, and said lugs being spaced circumferentiallyfrom opposite edges of respective perforations.

4. A cotton picker doifer, comprising: a horizontally rotatable mountingmember having a flat top side and underface; a pair of complementarysecuring elements collectively defining a ring concentrically disposedas respects said member and having axially spaced upper and lower flangeportions receiving said member therebetween about its periphery and anaxially directed interconnecting flange portion therebetween bearingagainst the periphery of said member, said upper flange portion having abottom side seated against said top side of said member, said lowerflange portion spaced axially below said underface of said member, andhaving a plurality of substantially uniformly spaced slots therethroughelongated radially of said lower web, and defined by circumferentiallyspaced side edges and radially inner and outer edges with the outer edgeof each disposed along said axially directed flange portion and theinner edge spaced radially outwardly of the inner periphery of thebottom flange portion; a semicircular doffer component in each elementdisposed substantially concentric therewith and having a base portioncompressed 2,688,225 5 6 between said underface of said member and 6. Adoffer according to claim 5 and said base said lower flange of theassociated element, and portion having an inner edge disposed radially aplurality of lugs on the base portion, one for outwardly of the inneredge of said slots. each slot and depending from the base portionthrough the respective slot in spaced relationship 5 References Cited inthe file Of this patent to the side and radially inner edges thereof.UNITED STATES PATENTS 5. The doffer according to claim 4 and said N b ND be lower flange portion having an inner edge With an 52 3 5 H ame J 1"i 1941 pw r ly ofiset seatin portion bearing against agen u y saidunderface of said member. 10

